UnrealIRCd up to 3.2.8 allow::options::noident memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in UnrealIRCd up to 3.2.8. Affected by this issue is the function allow::options::noident. This manipulation causes memory corruption. This vulnerability appears as CVE-2009-4893. There is no available exploit.

Detailsinfo

A vulnerability was found in UnrealIRCd up to 3.2.8. It has been declared as critical. Affected by this vulnerability is the function allow::options::noident. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

The weakness was presented 06/15/2010 (Website). The advisory is shared at unrealircd.com. This vulnerability is known as CVE-2009-4893 since 06/14/2010. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 47016 (GLSA-201006-21 : UnrealIRCd: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (47016), SecurityFocus (BID 42077†) and Vulnerability Center (SBV-27460†). See VDB-53595 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 47016
Nessus Name: GLSA-201006-21 : UnrealIRCd: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 100856
OpenVAS Name: UnrealIRCd User Authentication Buffer Overflow Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/24/2009 🔍
06/14/2010 +294 days 🔍
06/15/2010 +1 days 🔍
06/15/2010 +0 days 🔍
06/15/2010 +0 days 🔍
06/15/2010 +0 days 🔍
10/06/2010 +113 days 🔍
03/19/2015 +1625 days 🔍
09/15/2021 +2372 days 🔍

Sourcesinfo

Advisory: unrealircd.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-4893 (🔍)
GCVE (CVE): GCVE-0-2009-4893
GCVE (VulDB): GCVE-100-53593
SecurityFocus: 42077 - UnrealIRCd User Authentication Buffer Overflow Vulnerability
Vulnerability Center: 27460 - UnrealIRCd 3.2beta11 through 3.2.8 Remote DoS or Arbitrary Code Execution Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/19/2015 12:22
Updated: 09/15/2021 15:45
Changes: 03/19/2015 12:22 (57), 03/07/2017 08:20 (10), 09/15/2021 15:45 (3)
Complete: 🔍
Cache ID: 216:944:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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